Probing exotic cross-shell interactions at N=28 with single-neutron transfer on 47K
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| Format: | Preprint |
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2024
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| author | Paxman, C. J. Matta, A. Catford, W. N. Lotay, G. Assié, M. Clément, E. Lemasson, A. Ramos, D. Orr, N. A. Galtarossa, F. Girard-Alcindor, V. Dudouet, J. Achouri, N. L. Ackermann, D. Barrientos, D. Beaumel, D. Bednarczyk, P. Benzoni, G. Bracco, A. Canete, L. Cederwall, B. Ciemala, M. Delahaye, P. Doherty, D. T. Domingo-Pardo, C. Fernández-Domínguez, B. Fernández, D. Flavigny, F. Fougères, C. de France, G. Franchoo, S. Gadea, A. Gibelin, J. González, V. Gottardo, A. Goyal, N. Hammache, F. Harkness-Brennan, L. J. Harrouz, D. S. Jacquot, B. Judson, D. S. Jungclaus, A. Kaşkaş, A. Korten, W. Labiche, M. Lalanne, L. Lenain, C. Leoni, S. Ljungvall, J. Lois-Fuentes, J. Lokotko, T. Lopez-Martens, A. Maj, A. Marqués, F. M. Martel, I. Menegazzo, R. Mengoni, D. Million, B. Nyberg, J. Pérez-Vidal, R. M. Plagnol, L. Podolyák, Zs. Pullia, A. Quintana, B. Regueira-Castro, D. Reiter, P. Rejmund, M. Rezynkina, K. Sanchis, E. Şenyiğit, M. de Séréville, N. Siciliano, M. Sohler, D. Stezowski, O. Thomas, J. -C. Utepov, A. Valiente-Dobón, J. J. Verney, D. Zielińska, M. |
| author_facet | Paxman, C. J. Matta, A. Catford, W. N. Lotay, G. Assié, M. Clément, E. Lemasson, A. Ramos, D. Orr, N. A. Galtarossa, F. Girard-Alcindor, V. Dudouet, J. Achouri, N. L. Ackermann, D. Barrientos, D. Beaumel, D. Bednarczyk, P. Benzoni, G. Bracco, A. Canete, L. Cederwall, B. Ciemala, M. Delahaye, P. Doherty, D. T. Domingo-Pardo, C. Fernández-Domínguez, B. Fernández, D. Flavigny, F. Fougères, C. de France, G. Franchoo, S. Gadea, A. Gibelin, J. González, V. Gottardo, A. Goyal, N. Hammache, F. Harkness-Brennan, L. J. Harrouz, D. S. Jacquot, B. Judson, D. S. Jungclaus, A. Kaşkaş, A. Korten, W. Labiche, M. Lalanne, L. Lenain, C. Leoni, S. Ljungvall, J. Lois-Fuentes, J. Lokotko, T. Lopez-Martens, A. Maj, A. Marqués, F. M. Martel, I. Menegazzo, R. Mengoni, D. Million, B. Nyberg, J. Pérez-Vidal, R. M. Plagnol, L. Podolyák, Zs. Pullia, A. Quintana, B. Regueira-Castro, D. Reiter, P. Rejmund, M. Rezynkina, K. Sanchis, E. Şenyiğit, M. de Séréville, N. Siciliano, M. Sohler, D. Stezowski, O. Thomas, J. -C. Utepov, A. Valiente-Dobón, J. J. Verney, D. Zielińska, M. |
| contents | We present the first measurement of the $^{47}$K($d,pγ$)$^{48}$K transfer reaction, performed in inverse kinematics using a reaccelerated beam of $^{47}$K. The level scheme of $^{48}$K has been greatly extended with nine new bound excited states identified and spectroscopic factors deduced. Detailed comparisons with SDPF-U and SDPF-MU shell-model calculations reveal a number of discrepancies with these results, and a preference for SDPF-MU is found. Intriguingly, an apparent systematic overestimation of spectroscopic factors and a poor reproduction of the energies for 1$^-$ states suggests that the mixing between the $πs^{\,\,\,1}_{1/2} d^{\,\,\,4}_{3/2}$ and $πs^{\,\,\,2}_{1/2} d^{\,\,\,3}_{3/2}$ proton configurations in $^{48}$K is not correctly described using current interactions, challenging our descriptions of light $N=28$ nuclei. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2409_12594 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Probing exotic cross-shell interactions at N=28 with single-neutron transfer on 47K Paxman, C. J. Matta, A. Catford, W. N. Lotay, G. Assié, M. Clément, E. Lemasson, A. Ramos, D. Orr, N. A. Galtarossa, F. Girard-Alcindor, V. Dudouet, J. Achouri, N. L. Ackermann, D. Barrientos, D. Beaumel, D. Bednarczyk, P. Benzoni, G. Bracco, A. Canete, L. Cederwall, B. Ciemala, M. Delahaye, P. Doherty, D. T. Domingo-Pardo, C. Fernández-Domínguez, B. Fernández, D. Flavigny, F. Fougères, C. de France, G. Franchoo, S. Gadea, A. Gibelin, J. González, V. Gottardo, A. Goyal, N. Hammache, F. Harkness-Brennan, L. J. Harrouz, D. S. Jacquot, B. Judson, D. S. Jungclaus, A. Kaşkaş, A. Korten, W. Labiche, M. Lalanne, L. Lenain, C. Leoni, S. Ljungvall, J. Lois-Fuentes, J. Lokotko, T. Lopez-Martens, A. Maj, A. Marqués, F. M. Martel, I. Menegazzo, R. Mengoni, D. Million, B. Nyberg, J. Pérez-Vidal, R. M. Plagnol, L. Podolyák, Zs. Pullia, A. Quintana, B. Regueira-Castro, D. Reiter, P. Rejmund, M. Rezynkina, K. Sanchis, E. Şenyiğit, M. de Séréville, N. Siciliano, M. Sohler, D. Stezowski, O. Thomas, J. -C. Utepov, A. Valiente-Dobón, J. J. Verney, D. Zielińska, M. Nuclear Experiment We present the first measurement of the $^{47}$K($d,pγ$)$^{48}$K transfer reaction, performed in inverse kinematics using a reaccelerated beam of $^{47}$K. The level scheme of $^{48}$K has been greatly extended with nine new bound excited states identified and spectroscopic factors deduced. Detailed comparisons with SDPF-U and SDPF-MU shell-model calculations reveal a number of discrepancies with these results, and a preference for SDPF-MU is found. Intriguingly, an apparent systematic overestimation of spectroscopic factors and a poor reproduction of the energies for 1$^-$ states suggests that the mixing between the $πs^{\,\,\,1}_{1/2} d^{\,\,\,4}_{3/2}$ and $πs^{\,\,\,2}_{1/2} d^{\,\,\,3}_{3/2}$ proton configurations in $^{48}$K is not correctly described using current interactions, challenging our descriptions of light $N=28$ nuclei. |
| title | Probing exotic cross-shell interactions at N=28 with single-neutron transfer on 47K |
| topic | Nuclear Experiment |
| url | https://arxiv.org/abs/2409.12594 |